/*
 * CAD System for seamlessly constructing 2D and 3D scenes with aspects and motion
 * Copyright (C) 2013 Bernhard Haumacher and others
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.haumacher.draw5d.math.d2.constructions.internal;

import de.haumacher.draw5d.dataflow.Property;
import de.haumacher.draw5d.dataflow.Scope;
import de.haumacher.draw5d.dataflow.core.InputImpl;
import de.haumacher.draw5d.math.values.Scalar;

public class PolarCoordinate extends D2ComputationImpl {

	private static final Property<Scalar> LENGTH = property(Scalar.class);

	private static final Property<Scalar> ALPHA = property(Scalar.class);

	public PolarCoordinate(Scope scope) {
		super(scope, LENGTH, ALPHA);
	}

	@Override
	public void validate() {
		double alpha = get(ALPHA).get();
		double x = get(LENGTH).get() * Math.cos(alpha);
		double y = get(LENGTH).get() * Math.sin(alpha);
		getResult().update(x, y);
	}

}
